It’s likely you depend on your regular dentist for the lion’s share of your dental care. But in cases of advanced disease or trauma, you may need the services of a dental specialist.

This could be the case with periodontal (gum) disease, a bacterial infection triggered by a thin biofilm on tooth surfaces called dental plaque that isn’t adequately removed through daily oral hygiene practices. While your regular dentist can effectively treat many forms of gum disease, there are times when you should see a periodontist who specializes in the gum, supporting bone and connective tissues.

So, when should you see a periodontist for gum disease treatment? Here are 3 situations that may call for this important dental specialist.

If your dentist refers you. Your dentist may be quite proficient in treating gum disease, mainly by removing the dental plaque and tartar sustaining the infection. But if the infection has advanced deep within the gum tissues especially around the roots and bone, you may need more advanced measures, including surgery, performed by a periodontist.

If you’d like a second opinion. Of course, you don’t need a referral to see a periodontist. You can make an appointment with one for another opinion about your diagnosis and recommended treatment plan. If you choose to see a periodontist, make sure they have access to all your dental and medical records, as well as your past health history.

If you have other health issues. Gum disease often doesn’t occur in a vacuum – it may exist and even influence (or be influenced by) other inflammatory medical conditions. If you have such a condition like diabetes or cardiovascular disease, you may opt to see a periodontist first for a more comprehensive evaluation.

In the meantime, keep an eye out for the first signs of disease including red, swollen or bleeding gums (if you smoke, be aware smoking hides these signs of disease). And practice daily brushing and flossing as well as obtaining regular dental cleanings to keep plaque accumulation to minimum. Preventing gum disease and getting treatment as early as possible may help you avoid more invasive treatments later.